1 /*
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright © 2020 Keith Packard
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
17 *
18 * 3. Neither the name of the copyright holder nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
33 * OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35
36 #include <stdlib.h>
37 #include <semihost.h>
38
39 int
main(void)40 main(void)
41 {
42 struct sys_semihost_block block;
43
44 /* Initialize to invalid values */
45 block.heap_base = (void *) (uintptr_t) 4;
46 block.heap_limit = (void *) (uintptr_t) 3;
47 block.stack_limit = (void *) (uintptr_t) 2;
48 block.stack_base = (void *) (uintptr_t) 1;
49
50 sys_semihost_heapinfo(&block);
51 if (block.heap_base != NULL && block.heap_limit != NULL) {
52 /* Error if heap base is above limit */
53 if ((uintptr_t) block.heap_base >= (uintptr_t) block.heap_limit) {
54 printf("heap base %p >= heap_limit %p\n",
55 block.heap_base, block.heap_limit);
56 exit(1);
57 }
58 }
59 if (block.stack_base != NULL && block.stack_limit != NULL) {
60 /* Error if stack base is below limit */
61 if ((uintptr_t) block.stack_base < (uintptr_t) block.stack_limit) {
62 printf("stack base %p < stack_limit %p\n",
63 block.stack_base, block.stack_limit);
64 exit(2);
65 }
66 }
67 exit(0);
68 }
69
